Inert ceramic alumina ball has stable chemical features and a low rate of water absorption, resistant to high temperature and high pressure. It is also resistant to the corrosion of acid, alkali and some other organic solvents. They can stand the rapid changes in temperature during the manufacturing process.
Inert ceramic alumina ball Physical Prosperities:
Product name Item | Low Alumina Ball | Middle Alumina Ball | High Alumina Ball | |
Al2O3 | 17-35% | 60-75% | 80-95% | |
Al2O3 +SiO2(%) | ≥92% | ≥92% | ≥95% | |
Fe2O3(%) | 1% | 1% | 0.5% | |
CaO (%) | 1.5% | 2.1% | 2.9% | |
MgO (%) | 2.5% | 1.3% | 0.5% | |
K2O+Na2O(%) | 4.0% | 4.0% | 4.0% | |
TiO2 (%) | 0.5% | 0.1% | 0.1% | |
Water absorption | 3% | |||
Acid resistance | 98% | |||
Alkali resistance | 80% | 85% | 90% | |
Operation Temperature (°C) | 980 | 1180 | 1580 | |
Spalling Resistance(°C) | 300 | 500 | 700 | |
Gravity(g/cm3) | 2.3-2.4 | 2.6 | 3.5 | |
Mohs hardness Max | 6.5 | 7.0 | 7.0 | |
Compressive
| Ø6 | 0.4 | 0.5 | 0.6 |
Ø13 | 1.2 | 1.6 | 1.7 | |
Ø20 | 1.8 | 2.0 | 2.3 | |
Ø25 | 2.5 | 2.9 | 3.2 | |
Ø38 | 4.0 | 4.5 | 5.0 | |
Ø50 | 8.0 | 8.5 | 11 |
Specification:
Dia(Φ) | 3 | 6 | 8 | 10 | 13 | 16 | 20 | 25 | 30 | 38 | 50 | 65 | 75 | |||
Allowable deviation | ±1.0 | ±1.5 | ±2.0 | ±3.0 |